Mitsubishi S4S Service Manual page 66

ENGINE MAIN PARTS
(4) Remove valve and valve spring
(a) Use valve spring pusher (30691-04500) to
compress the valve spring, then remove the
valve cotters.
(b) Remove the valves and valve springs.
,.....-------I[
NOTE
ÎI- -,
If the original valves are to be reused, mark them
for their locations to ensure the originallocation
and combinations of the valve, valve seat and
valve guide.
1.2 Inspeetion
Rocker arms, rocker bushings and rocker shafts
(1) Measuring rocker arm bushing and rocker shaft
Measure the inside diameter of the rocker bushing
and the diameter of the rocker shaft as shown in
the illustration. Determine the clearance between
the bushing and shaft on the basis of the
measurements. If the clearance does not exceed
the repair limit, replace the rocker arm. If it
exceeds the repair limit, replace the shaft and
rocker arm.
Unit: mm [in.]
Item
Nominal Assembly Service
Value Standard
Limit
Inside diameter
19.010
of rocker
to 19.030
bushings
[0.7484
19 to 0.7492]
[0.75]
18.980
Diameter of to 19.000
rocker shaft [0.7472
to 0.7480]
Clearance 0.010
between rocker to 0.050
0.070
bushing and [0.0004 [0.0028]
shaft to 0.0020]
7-4
Removing valve and valve spring
Measuring rocker arm bushing and rocker shaft